The EPTS Calculator is designed to process data from athlete tracking systems and convert it into meaningful performance metrics. EPTS stands for Electronic Performance and Tracking Systems, which are widely used in sports such as football, basketball, and athletics to monitor how players move and perform during a game or training session.
This calculator helps coaches, analysts, and athletes measure performance indicators like total distance run, sprint count, average speed, and acceleration. With this information, training plans can be adjusted, injury risks managed, and performance optimized.
Formula of EPTS Calculator
The EPTS Calculator is based on a series of formulas used to evaluate movement metrics. Here’s how each is calculated:
1. Total Distance Covered
Formula:
Distance = Σ √[(x₂ − x₁)² + (y₂ − y₁)²]
This sums the distances between consecutive position coordinates over time.
- x and y are the horizontal and vertical positions at each time stamp.
- The result is measured in meters or kilometers.
2. Average Speed
Formula:
Average Speed = Total Distance / Total Time
- Total Distance is the output from the first formula.
- Total Time is the total duration of the session.
- Result is shown in meters per second (m/s) or kilometers per hour (km/h).
3. Sprint Count
Formula:
Sprint Count = Number of intervals where Speed ≥ Sprint Threshold
- Speed is measure across short time intervals.
- The sprint threshold depends on the sport. For example, in soccer, a sprint may be define as movement faster than 25.2 km/h.
4. High-Intensity Distance
Formula:
High-Intensity Distance = Σ Distance where Speed ≥ High-Intensity Threshold
This includes only the distance covered while moving above a certain speed.
- For soccer, this threshold is often set at 19.8 km/h.
5. Acceleration and Deceleration
Formula:
Acceleration = ΔSpeed / ΔTime
This tells how quickly a player speeds up or slows down.
- Expressed in meters per second squared (m/s²).
- It’s a key indicator of explosive movement and energy use.
Data Needed
To use this calculator, time-stamped position data is essential. Most modern sports tracking systems provide this, allowing the calculator to determine velocity, distance, and other values. Sport-specific thresholds for sprinting and high-intensity effort are also require.
Useful Reference Table
| Metric | Common Value Used in Soccer |
|---|---|
| Sprint Threshold | 25.2 km/h |
| High-Intensity Threshold | 19.8 km/h |
| Typical Match Duration | 90 minutes |
| Tracking Frequency | 10–25 Hz |
| Acceleration Threshold | 2.5 m/s² |
This table provides a quick guide for standard settings used in many sports performance platforms.
Example of EPTS Calculator
Let’s say a football player has the following stats from a 90-minute match:
- Total Distance: 10,800 meters
- Average Speed: 10,800 / 5400 = 2 m/s
- Number of intervals where speed was ≥ 25.2 km/h: 18
- Distance above 19.8 km/h: 1,650 meters
- Maximum acceleration during a sprint: 3.1 m/s²
These values suggest the player performed at a high intensity with frequent sprints, sustained effort, and good explosiveness. The coach might use this to track fitness or plan recovery.
Most Common FAQs
It depends on the quality of the position tracking data. High-frequency systems (20–25 Hz) provide more reliable output.
Yes. You just need to change the sprint and intensity thresholds according to the demands of the specific sport.
You need timestamped x and y positions for each time step, and sometimes additional data like velocity if provided by the tracking system.